Firefox Community Forum

For the last five days I've been unable to login to a particular site unless I clear the cache EVERY time I want to login. It's a site I've been using for many years but now I just get a message saying 'An error has occurred. Please try again later.' When I try later, the error still exists. I don't get this error message when using an alternative browser, but I don't want to do that. It's also the only site I'm having issues with ....................... which is strange. The site in question says that I'm the only one facing this problem. Any thoughts?

This is a bit difficult to explain, but I'll do my best.

Our company uses NetIQ Identity Manager, which we access through a web browser. I primarily used Firefox until I had to switch to another browser because of this issue. The problem only occurs in Firefox; I have tested several Chromium-based browsers, and none of them exhibit the same behavior.

On a specific page within the application, there are two panels: one displays a list of users, and the other displays details for the selected user.

The issue is that Firefox does not show a separate scrollbar for the user details panel. Instead, it only scrolls the page based on the height of the user list panel. As a result, when the user list contains fewer entries than the amount of information displayed in the user details panel, Firefox is unable to scroll through the entire details section. The hidden information still exists and becomes visible if the browser window is resized to be taller.

When the user list contains enough entries to make that panel taller than the user details panel, all user details are displayed correctly and scrolling works as expected because the entire page can be scrolled.

In Edge and other Chromium-based browsers, both panels have their own scrollbars. The scrollbar for the user details panel is only displayed when necessary, such as when the amount of user information exceeds the available space, but scrolling works correctly in all cases.

Is there anything that can be done to resolve this issue?

Unfortunately, the page is hosted on our company's internal network, so I am unable to share it.

The issue first appeared at the end of February this year. I believe I was using Firefox version 148 at the time. Prior to that, the problem did not occur. I am using Windows 11 and have tried the troubleshoot mode, which did not help.

I just purchased a Keychron Q1 MAX keyboard. To customize the keyboard you need to use the online Keyboard Launcher (https://launcher.keychron.com/). That website says that only Chrome, Edge & Opera are supported if you're using Firefox.

Hello Mozilla Support Community,

We are troubleshooting a cross-origin resource sharing (CORS) issue specifically occurring in recent Firefox releases when processing custom B2B appointment requests.

Setup & Context:

Our production application, Frontline Sales Consultancy (flsc.co.uk), triggers a client-side fetch request to an external CRM gateway.

The request works seamlessly on Chrome and Edge, but Firefox throws an NS_ERROR_DOM_BAD_URI during the OPTIONS preflight check.

Observed Behavior:

Firefox Web Developer Console shows the preflight request failing before headers are evaluated.

Access-Control-Allow-Origin and Access-Control-Allow-Methods are explicitly declared on our origin server.

Does Firefox handle strict MIME-type checking or preflight caching differently for custom HTTPS API endpoints?

Any insights into Firefox-specific CORS strictness or network console debugging flags would be greatly appreciated.

Thanks!

Unable to load https://fingtrainer.com as of yesterday. Been downloading the flingtrainer for single player games for a long time now and there is no issue. Try to disable/change enhanced tacking, dns, site were included in exceptions and reinstalling firefox does nothing. While the learn more link provide image solutions, none of them does anything and the disable button for the enhanced tracking is not working. Other browser like opera gx is able to load without any issue. Please assist with a solution or kindly revert the settings.

Server Not Found

Firefox can’t connect to the server at flingtrainer.com. Did you mean to go to www.flingtrainer.com? What can you do about it?

   Check to make sure you’ve typed the website address correctly and try again in a few moments.
   Check your network connection.
   Check that Firefox has permission to access the web (you might be connected but behind a firewall).

I sometimes sell items on sites such as eBay. When I try to copy and paste the picture (from my Photos) is just a weird symbol. If I go to a different computer it works! If I go to a different browser it works! When I open a weather App the radar is all washed out with different colors. What's the issue?

I have used Facebook in my Firefox browser for several years. Then all of a sudden, Facebook will load, then it will not load and yesterday and today, it won't load at all. I have to go over to Chrome to get on my Facebook. Please fix whatever is preventing me from using Facebook on Firefox.

For whatever reason when on the front page of YouTube, this magenta border will flash on and off around the top header as well as the button elements, I have no idea if this is Firefox or yt, but I've tried everything, on YouTube, I've tried fixing it in troubleshooting, code, accessibility, restarting browser and computer, randomly removing extensions. Nothing is stopping it. It briefly tried doing it on a different site but stopped on it's own, it's only effecting YouTube and Firefox

NEW NOTE; THIS is actually occuring on other websites now, specifically the Mozilla mdn page I looked at to glance and see if I could figure this out myself. So far still can't fix it

jag har använt firefox sedan det ersatte mozilla, med min nya dator med snapdragon processor vägrar den att koppla upp till en del hemsidor jag har version 154.0b10 (aarch64) och har använt denna dator i 9 månader, men väntar fortfarande på en uppgradering

First off I have always used Firefox as my default browser... better than all the rest. For the last week I've been working on a project on ChatGPT and have multiple times dragged and dropped a screenshot directly into the chat until today... now it gives me a red warning label at the top that says that this browser does not support import of jpeg, png, heic... but I've been doing it all week. Has there a change? How do I keep doing this? And now it won't even allow me to add an image here.

Check https://piunikaweb.com/2026/08/14/firefox-x-images-videos-not-loading/ for details, but basically xTwitter/Melon messed again with their latest update.

Any word from those in the know yet? Having to use different browsers to see multi-pic posts is really annoying.

Chase Banking worked for years using FFox on Win10 PC. and using verification with Message on phone. Now is asking for secondary verification using a phone app that I dont have and cannot load. Can login thru Microsoft Edge and Googal Chrome successfully using PC. Not Happy!

Hej!

Vissa foton på Twitter/X öppnas inte på olika konton efter er senaste uppdatering. Problemet verkar ligga hos Firefox, eftersom samma foton öppnas utan problem när jag använder DuckDuckGo-webbläsaren på samma konton.

Mvh

M

Hi!

Some photos on Twitter/X are not opening on different accounts after your last update. The problem seems to be with Firefox, as the same photos open without any problems when I use the DuckDuckGo browser on the same accounts.

Regards

M

After clearing my cache, I got logged out of all of my accounts, and I can no longer sign into Google. When I enter my username it gives me a message that says “Couldn’t sign you in: this browser may not be secure. Try using a different browser.” I was able to log in using Chrome so it’s definitely not a device issue. I already tried clearing my cookies and cache again, and disabling all of my browser extensions, but I’m still getting the same message. Any help is appreciated!

Editing to add, I'm using Windows 11 and Firefox version 153.0

Cannot log in to Xcel Energy web page after resent Firefox update: the error code is The requested URL was rejected. Please consult with your administrator.

Your support ID is fa42d3aa-1a9d-4b8f-a478-529a34e84924 Error 403 - Forbidden F5 site: ch2-chi

Other web sites work fine.

I have two gmail accounts and have saved both on my bookmark toolbar. Today, the email that has the http address "https://mail.google.com/mail/u/0/#inbox" gives me nothing but a blank screen. The other, which has the http of "https://mail.google.com/mail/u/2/#inbox" operates just fine. I am able to open and access the first google account on my android phone or by using google chrome. I am only not able to use it on the firefox platform.

Any suggestions?

Thanks.

I would like to link firefox with wild tangent games. Right now my games are not launching and I was wondering if it's because I changed browser from chrome to firefox?